JORGE SÁNCHEZ MELEÁN. The great instructional resource: The textbook. Telos: Revista de Estudios Interdisciplinarios en Ciencias Sociales, [S. l.], v. 8, n. 1, p. 131–133, 2006. Disponível em: https://ojs.urbe.edu/index.php/telos/article/view/2669. Acesso em: 28 jan. 2026.